occupy vs putter

occupy is not a noun while putter is a noun.

Word	Noun	Adjective	Verb	Adverb
occupy	No	No	Yes	No
putter	Yes	No	Yes	No

As verbs, putter is a hyponym of occupy; that is, putter is a word with a more specific, narrower meaning than occupy:

Other hyponyms of occupy include potter, dabble, play around, smatter.

occupy (noun)	putter (noun)
	the iron normally used on the putting green
	a golfer who is putting

occupy (verb)	putter (verb)
consume all of one's attention or time	move around aimlessly
march aggressively into another's territory by military force for the purposes of conquest and occupation	do random, unplanned work or activities or spend time idly
require (time or space)	work lightly
keep busy with
assume, as of positions or roles
live (in a certain place)
occupy the whole of
be on the mind of